0.62.0

• Fixed bug with promotion of CompoundPlugs to Boxes.
• Fixed ImageNode paste error (#251).
• Fixed BoolPlugValueWidget._updateFromPlug() to avoid setting plug value (#266).
• Fixed bug in Group operation (#269).
• Implemented RenderMan shader parameter activation via annotation expressions (#226). An activator is defined by a global annotation of this form : pragma annotation “activator.name.expression” “pythonExpression” The python expression may reference current parameter values by name, and also use the connected( “parameterName” ) function to query whether or not a parameter is connected. Activators are then assigned to specific parameters using annotations of this form : pragma annotation “parameterName.activator” “name”
• Implemented annotation-based uis for RenderManLight node.
• Added a ComputeNode class, and refactored DependencyNode so it can be a useful base class for shaders as well.
• Fixed dirty propagation of Shaders through ShaderAssignments.
• Fixed 3delight workaround. GafferRenderMan now requires 3delight 10.0.138 or newer.
• Added rudimentary shader updates to InteractiveRender. Note that there are still problems whereby deadlocks sometimes occur so this isn’t in a state where you’d want to bet the success of any public performances on it.
• Fixed an issue with the glBlendingMode that was causing the result to be pre-multiplied twice.
• Fixed an image rendering issue with data/display window mismatches.
• Fixed banding and dark edges evident in 2D viewer (#74).
• Improved speed issues when moving single nodes in the NodeGraph by refactoring GraphGadget::connectionGadgetAt (#283).